In 1810, Governor James Henry Craig authorized construction of a road to link Quebec and the US city of Boston.
The workforce of 180 soldiers cut trees and built bridges to make the road suitable for traffic.
Although the terrain was muddy and damaged in several places, it was suitable enough for a winter stagecoach service, which was established in January 1811 and took passengers from Quebec to Boston in only six days.
The service ended at the March thaw and was later abandoned completely because of the difficult travelling conditions, including Lipsey's Hill.
Heading towards the US, it passes through Windsor, Bromptonville, Sherbrooke, Ayer's Cliff and finally Stanstead, at the international border.